86815280

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{25237}}^1$

素因数の和:25293

約数の個数: 40

約数和(自身を含む): 206547792

約数和(自身を除く): 119732512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 25237, 50474, 100948, 126185, 201896, 252370, 403792, 504740, 1009480, 1085191, 2018960, 2170382, 4340764, 5425955, 8681528, 10851910, 17363056, 21703820, 43407640, 86815280]

約数ペア:

[(1, 86815280), (2, 43407640), (4, 21703820), (5, 17363056), (8, 10851910), (10, 8681528), (16, 5425955), (20, 4340764), (40, 2170382), (43, 2018960), (80, 1085191), (86, 1009480), (172, 504740), (215, 403792), (344, 252370), (430, 201896), (688, 126185), (860, 100948), (1720, 50474), (3440, 25237)]